Rajpara Rahul K, Dudhagara Dushyant R, Bhatt Jwalant K, Gosai Haren B, Dave Bharti P
Department of Life Sciences, Maharaja Krishnakumarsinhji Bhavnagar University, Sardar Vallabhbhai Patel Campus, Bhavnagar 364001, Gujarat, India.
Department of Life Sciences, Maharaja Krishnakumarsinhji Bhavnagar University, Sardar Vallabhbhai Patel Campus, Bhavnagar 364001, Gujarat, India.
Mar Pollut Bull. 2017 Jun 30;119(2):231-238. doi: 10.1016/j.marpolbul.2017.04.039. Epub 2017 Apr 28.
The present study extrapolates the assessment and characterization of a barely studied region, the Gulf of Kutch, (near Jamnagar), Gujarat, India, in terms of PAH exposure, adverse effects caused by them, and various toxicological indices showing the catastrophic effects of their elevated concentrations. ΣPAH concentration in the site ranged from 118,280 to 1,099,410ngg dw, with a predominance of 2-3-ring PAHs (79.09%) as compared to 4-5- and 6-ring PAHs (20.91%). The concentrations of carcinogenic PAHs were found to be between 8120 and 160,000ngg dw, with a mean of 63,810ngg dw, which is much higher than normal acceptable values. The toxic equivalent quotient for 6CPAHs ranged from 150.47 to 26,330ngg BaP encompassing 50.63% of ΣPAH toxicity. This toxicological profile of the present study site would be of paramount importance as it offers fresh information regarding the load of legacy pollutants such as PAHs and the inputs and methods to cope with their extremely high concentrations in less explored marine habitats.
本研究对印度古吉拉特邦贾姆讷格尔附近一个几乎未被研究的地区——库奇湾，就多环芳烃暴露、其造成的不利影响以及显示其浓度升高带来灾难性影响的各种毒理学指标进行了评估和特征描述。该地点的总多环芳烃浓度在118,280至1,099,410纳克/克干重之间，其中2 - 3环多环芳烃占主导（79.09%），而4 - 5环和6环多环芳烃占20.91%。致癌多环芳烃的浓度在8120至160,000纳克/克干重之间，平均为63,810纳克/克干重，远高于正常可接受值。6种致癌多环芳烃的毒性当量商在150.47至26,330纳克/克苯并[a]芘之间，占总多环芳烃毒性的50.63%。本研究地点的这种毒理学概况至关重要，因为它提供了有关多环芳烃等遗留污染物负荷以及在较少探索的海洋栖息地应对其极高浓度的输入和方法的新信息。
